Remove queue cancel controls (#6723)

## Summary
- remove the interrupt/clear controls from the run button cluster
- drop the queue pending count dependencies that only fed those controls

This is at the request of product design, because this functionality is
being relocated to the queue progress overlay in bl-execution

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6723-Remove-queue-cancel-controls-2ae6d73d365081ddaa63ea9e3447ad7f)
by [Unito](https://www.unito.io)

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Co-authored-by: pythongosssss <125205205+pythongosssss@users.noreply.github.com>
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: Jin Yi <jin12cc@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>
Co-authored-by: Johnpaul Chiwetelu <49923152+Myestery@users.noreply.github.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>
Co-authored-by: Comfy Org PR Bot <snomiao+comfy-pr@gmail.com>
Co-authored-by: christian-byrne <72887196+christian-byrne@users.noreply.github.com>

Author: 10 people